USA born Duff (aka Duffo) possesses an excellent tenor voice which seems more suited to opera, but Duff has succeeded in recording in the rock medium. As lead singer of the Chicago / Blood, Sweat And Tears -influenced big band Kush (1971-77), Duff secured plenty of attention with his antics and bizarre choice of costume. The band, limited by its size, could only work the large venues and cabarets, and despite the huge effort to maintain the band, managed to record two albums and have two Top 40 singles. Upon its demise, Duff formed his own group and toured with a lively and va...